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Official data from INPI

CONJUNTO DE ANEL DE VEDACAO DE FACE FINAL,JUNTA ARTICULADA,CONJUNTO DE VEDACAO DE FACE FINAL E ANEL DE PRESSAO

Em AnáliseInvention Patent

Application data

Number

PI7807015

Type

Invention Patent

Filing

10/27/1977

Publication

-

Progress at the INPI

  1. Filing10/27/77
  2. Publication
  3. Examination
  4. Allowance05/18/82
  5. Grant01/25/83
  6. Terminated01/28/92

The patent was granted on 01/25/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CATERPILLAR TRACTOR CO

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Inventors

L. T. (pessoa física)

R. R. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

03/22/1988

RPI 909

Concessão da patente

#16.1

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

09/08/1982

RPI 620

Deferimento

#9.1

05/18/1982

RPI 604

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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